I'm Japanese, but I know this British regional topic.

This sandwich filling was invented by a Japanese person, and the interest in it led to it being reported in Japanese newspapers.

Honestly, I think this debate is necessary but ridiculous.

EDIT:

I've just realized that this post might violate our community rule, "No politics. (Sandwich sub is not a political sub, go figure.)" So I'm considering deleting it.

(To me, this topic was about a faraway foreign country, and it was about the interpretation of law, not the enactment of law, so I didn't realize that this post was political.)

For now, I'll delete this post if I receive a notice from a mod or if it receives a certain number of downvotes, so please downvote it if you think this is political news.

RE-EDIT:

While I was editing this addendum, I received a positive response from the mod to this post, so I am withdrawing the above addendum regarding deletion.